Surgical instruments with curved section
First Claim
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1. A surgical instrument comprising:
- an ultrasonic blade, the ultrasonic blade comprising;
a proximally positioned straight section extending along a longitudinal axis; and
a distally positioned curved section coupled to the straight section and curved away from the longitudinal axis, wherein the curved section defines a radius of curvature, wherein the curved section subtends a first angle, and wherein a point of tangency between the curved section and the straight section is located at a predetermined position; and
wherein the radius of curvature of the curved section is described by;
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Abstract
Various embodiments described herein are directed to ultrasonic blades. For example, an ultrasonic blade may comprise a proximally positioned straight section extending along a longitudinal axis and a distally positioned curved section coupled to the straight section and curved away from the longitudinal axis. The curved section may define a radius of curvature and subtend a first angle. A point of tangency between the curved section and the straight section may be positioned at either a node of the ultrasonic blade or an anti-node of the ultrasonic blade.
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Citations
26 Claims
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1. A surgical instrument comprising:
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an ultrasonic blade, the ultrasonic blade comprising; a proximally positioned straight section extending along a longitudinal axis; and a distally positioned curved section coupled to the straight section and curved away from the longitudinal axis, wherein the curved section defines a radius of curvature, wherein the curved section subtends a first angle, and wherein a point of tangency between the curved section and the straight section is located at a predetermined position; and wherein the radius of curvature of the curved section is described by; - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An ultrasonic blade comprising:
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a proximally positioned straight section extending along a longitudinal axis; and a distally positioned curved section coupled to the straight section and curved away from the longitudinal axis, wherein the curved section defines a radius of curvature, wherein the curved section subtends a first angle, and wherein a point of tangency between the curved section and the straight section is located at a predetermined position; and wherein the radius of curvature of the curved section is described by; - View Dependent Claims (15, 16, 17, 18)
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19. An asymmetric ultrasonic blade comprising:
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a proximally positioned straight section extending along a longitudinal axis; a distally positioned curved section coupled to the straight section and curved away from the longitudinal axis; and a radius of curvature defined by the curved section, wherein the curved section subtends an angle and wherein the radius of curvature of the curved section is described by; - View Dependent Claims (20, 21, 22, 23)
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24. A curved ultrasonic blade comprising:
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a curved section comprising a proximal first curved section and a distal second curved section; wherein; the proximal first curved section is positionable within a shaft extending along a longitudinal axis; the curved ultrasonic blade is translatable along the longitudinal axis from a first position in which the distal second curved section is contained within the shaft to a second position in which at least a portion of the distal second curved section extends from a distal end of the shaft; the proximal first curved section defines a first radius of curvature; the distal second curved section defines a second radius of curvature; the first and second radius of curvature of the curved ultrasonic blade are described by; - View Dependent Claims (25)
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26. An ultrasonic blade comprising:
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a proximally positioned straight section; a distally positioned curved section; and wherein; the ultrasonic blade is translatable along a longitudinal axis relative to a shaft from a first position in which the curved section extends from a distal end of the shaft to a second position in which the curved section is at least partially contained within the shaft; the shaft extends along the longitudinal axis; the curved section defines a radius of curvature; and the radius of curvature of the ultrasonic blade is described by;
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Specification